Agilent Technologies 990 - Page 151

11 Micro GC Natural Gas Analyzer
Natural Gas Analyzer A and the A Extended Version
Agilent 990 Micro GC User Manual 151
4 meter CP-Sil 5 CB
The 4 meter CP-Sil 5 CB channel of the Natural Gas Analyzer A Extended is specified for the
analysis of light hydrocarbons propane, n-butane, iso-butane, iso-pentane, and n-pentane.
Analysis of the NGA Gas Calibration standard results in the chromatogram shown in Figure 71.
Analysis of a sample containing neo-pentane results in a chromatogram similar to Figure 72.
Analysis of the Universal Gas Calibration standard results in the chromatogram shown in
Figure 73.
Figure 71. NGA Gas Calibration standard analyzed with the 4 meter CP-Sil 5 CB channel on Analyzer A Extended
Seconds
8 10 12 14 16 18 20 22 24 26 28 30 32 34
mVolt
0
50
100
150
Ethane
Propane
n-Butane
i-Pentane
n-Pentane
i-Butane
Figure 72. Sample containing neo-pentane analyzed with the 4 meter CP-Sil 5 CB channel on Analyzer A Extended
Seconds
10 12 14 16 18 20 22 24 26 28 30 32
mVolt
0
50
100
150
200
Ethane
Propane
i-Butane
n-Butane
neo-Pentane
i-Pentane
n-Pentane
Figure 73. Universal Gas Calibration standard analyzed with the 4 meter CP-Sil 5 CB channel on Analyzer A Extended
Seconds
10 11 12 13 14 15 16 17 18 19 20 21 22
mVolt
0.0
2.5
5.0
7.5
10.0
12.5
15.0
Ethane
Propane
i-Butane
n-Butane